Eosin 0.7 %, aqueous is a specialized staining solution used in histology and cytology. Eosin is a red dye that mainly stains acidic (or eosinophilic) cell components such as the cytoplasm of cells, collagen fibers and red blood cells. In combination with other dyes, such as hematoxylin in H&E staining, eosin enables differential staining of tissue preparations to visualize different cell structures and tissue types.

This 0.5% aqueous eosin solution is a standardized staining solution suitable for a variety of histological and cytological applications. It is stable and ready-to-use, which facilitates application and improves the reproducibility of staining results.

Typical applications of eosin include the staining of tissue sections for light microscopy, the differentiation of cells in cytological preparations and the assessment of tissue composition in medical diagnostics and research.